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Auditory attention PPI adjustment system

A technology that regulates the system and hearing, applied in the field of cognition, to achieve the effect of improving recognition

Inactive Publication Date: 2017-08-04
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Subjective space separation technology is very effective in human subjects; however, in animal experiments, due to the animal's own head movement, the time difference between the speakers reaching both ears is changed, so the current subjective space separation technology for animal experiments has limitations

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific embodiments.

[0022] 【Human part】

[0023] 1. Startle reflex and prepulse inhibition

[0024] Startle stimulus: 40-ms, 100-dB white noise; Prepulse stimulus: 150-ms, 70-dB white noise; Baseline: 60dB white noise.

[0025] The experiment consisted of 2 identical blocks, each block consisted of 20 trials presented in a pseudo-random order: 8 trials in which only the startle stimulus was presented, 6 trials in which the prepulse and masked stimuli presented subjective space Separated, prepulse stimulus and masked stimulus presented subjective spatial fusion in 6 trials. The interval between trials was about 15s on average.

[0026] 3. Process

[0027] The subjects sat in a quiet environment (an anechoic room or shielded room is ideal), and electrodes were installed for the subjects (electrode 1. 10mm below the pupil; electrode 2: outside the electrode 1 near the corner of the eye; the g...

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PUM

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Abstract

The invention discloses an auditory attention PPI adjustment system. The auditory attention PPI adjustment system includes an interaction platform, a signal conversion unit, a signal playing unit and a data acquisition and analysis unit; the interaction platform is used for processing selected acoustic information into acoustic digital signals containing special information and sending the acoustic digital signals to the signal conversion unit; the signal conversion unit is used for converting the received acoustic digital signals into analog signals and sending the analog signals to the signal playing unit; the signal playing unit is used for playing the received acoustic analog signals; the data acquisition and analysis unit is used for collecting EMG activity data of a testee and determining the adjustment function of auditory attention of the testee on the PPI according to the collected EMG activity data. According to the auditory attention PPI adjustment system, the testee does not need to do oral reports, and the auditory attention PPI adjustment system is expected to exert important effects on patients suffering from language disorders.

Description

technical field [0001] The invention belongs to the field of cognition, and relates to auditory priority effect, in particular to an auditory attention PPI adjustment system, which is used for measuring and analyzing the adjustment effect of human or animal (such as rat) auditory attention on PPI. Background technique [0002] A sudden strong sensory stimulus will trigger a systemic reflex activity in humans or animals (such as rats), which is called startle reflex. The startle reflex is a protective behavior of humans or animals against threatening stimuli, but it will stop Interrupting ongoing cognitive activities and interfering with normal cognitive processing. However, if a weak stimulus that is not sufficient to cause the startle reflex (ie, prepulse stimulation) is presented before a strong stimulus, it will inhibit the subsequent startle reflex, which is called prepulse inhibition of the startle reflex (prepulse inhibition, PPI). PPI actually reflects a sensory-moto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M21/00
CPCA61M21/00A61M2021/0027
Inventor 李量曲天书吴哲萌丁宇
Owner PEKING UNIV
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